Search-light.



IVI. IVIATZ.

SEARCH LIGHT. APPLICATION FILED MAY I9, 1916.

1,21 5MM., Patented Feb. 6, 1917.

ith

MICHAEL MATZ, F MINEOJA, NEW YURK.

SCH-EIGHT.

- Spcctncation of Lettere Patent.

Patented lleb. 6, i933?.

Application led May 19, 1918. Serial No. 98,643.

will enable others skilled in the art to which ita-ppertains to make and use the same.

This invention belongs to the class of search lights, and has particular reference to portable electric appllances for use by doctors, mechanics, chaudeurs and others whose work requires the use of a light source whose rays may be variably directed while still permitting the operator to have the use of both hands. 4 i

Generally speaking, it is the object of my invention to provide a portable electric head lamp which may be mounted upon the operators body'in such a manner as to permit its rays to be directed at will upon the work in hand, the Search light bein a self-contained entity, and not requiring t e aid of an outside current source.

More particularly, it is the object of my invention to provide a self-contained head lamp which is s0 compactly arranged that the entire apparatus may be mounted upon the forehead of the user, so that its rays may be directed by the movement ofthe `head into dark corners, cavities or other points where it would be otherwise diiicult to suitably direct light rays while simultaneously working.

It is a further object of the invention to provide a search li ht of the above defined type in which the ight source may be adjusted relative to its support, so to vary the intesity of the light directed upon the wor With the above and other objects which will hereinafter appear in view, my invention will now be fully set forth and described, reference being had to the accompanying drawings.

said drawings Figure 1 is a view of the device showing it in practical use,

Fig. 2 is a front elevation of the device, F Fig. 3 is a vertical section on line 3 3 ot lig.9 4 is a detail perspective view of one of the parts of the invention,

Fig. 5 is a plan view of the metallic blank whch forms the body of the light an Fig. 6 is asectional view on line 6-6 of Fig. 2. l 4

Referring more particularly to said drawings 1 denotes a flexible head band which may be made of any suitable material, preferably a light calf-skin leather. VOne end of said head band is provided with a suitable buckle 2 and the intermediate points with elastic'sections 3, so that when the band has once been adjusted to the users head, the

support,

buckle need not be unfastened in `order to re,

move the band from the head. The central portion of the band l, which is adapted to pass across the users forehead is widened,

and carries, at its middle point, the frame or housing 4. Said frame or housing 4, as best seen in Fig. 5, is formed from a single metallic plate preferably aluminum, the ,top 5 and the bottom 6 being turned forwardly from the body of the plate, and forming supports for a spring yoke 7 which carries the lamp inclosure, as will hereinafter appear.-

'lhe back of the frame or housing 4 is provided with openings 8 in suitable number to secure the housing to the band 1,v as by rivets. Riveted to the forward end ofthe bottom extension 6 is the spring yoke '7 above mentioned, said spring yoke being formed of any suitable spring material. At the lower or closed end of the spring yoke 7, which is that portion which is secured to the bottom extension 6, the metal forming'the yoke is -or otherwise fastened to the inner faces of said arms 9. The upper ends of the arms 9 extend through a transversely elongated opening 11 in the top 5, the ends of said opening 11 providing stops to limit the maximum opening or spreading of the arms 9. Above the opening 11, one of the arms is provided with a threaded opening and the other arnrhas a smooth bored opening alined with said threaded opening through which is passed the adjusting screw 12, said adjusting screw being provided with a knurled head 13 which extends sufliciently beyond the arms 9 to permit the operator to readily turn the screw for tightening or loosening' the arms 9 and has a shoulder v13 which bears against the' outer face of the correspending arm 9. The top 5 is also provided with a transverse Aseries of openings 14 through which is threaded a 'suitably vinsulated conductor cord 15, said conductor cord having its opposite ends provided with suitable contacts 16. The conductorcord 15 is thus located permanently upon the frame or housing 4 in proper relation to connect the terminals of the battery which is carried by the band in the manner hereinafter described.

Mounted upon the trunnions or bearing studs 10 between the arms of the yoke 7 is the casing'17 in which are mounted `the usual lamp 1S, socket -19 and reflector 20, which in this, form no part of this invention, and need not be further described herein.

condensing lens 21 mounted in the front of the casing 17 in the usual manner, as b v means of the Screw collar 22 directs the. light source from the lamp 18 forwardly from the casing. The casing 17 is provided with terminals 23 and 21 which are connected to the lamp socket within the casing,

and two conductor cords 25 outside of the casing, one of said cords 25 being provided with a terminal for removable connection to one of the batteri1 cells, while the outer cord 25 is connected to the switch 26. Upon each side of the housing 4, the band 1 is provided with suitably shaped pockets 27 which may be formed of leather, hard rubber, or other material, the pockets preter-` ably being flattened to receive battery cells of the flattened type now found in the market for use in pocket electric flash lights. The battery cells inserted in these pockets 27 are retained therein by means of ila-ps .28 which are formed asy extensions from the upper edge of the band l. When the cells are placed in position, the negative terminal of one battery is connected to one of the terminals 16 of the cord 15, while the oppo- ,site terminal 16 is connected to the positive side of the other cell, thus connecting them in series. Located at one side of, or upon, one of the pockets 27, in convenient reach of the wearer, is mounted the switch 26 hereinabove mentioned. Said switch consists'essentially of a casing 29 (Fig. 6), in which is slidably mounted the contact element 30, the end of the latter being adapted to be slid into contact with the contact plate 31 which is also mounted upon the band 1, or other suitable position, and is electrically connectwill not inconvenience the wearer thereof.

Its operation is obvious from the foregoing. but it might be noted that the angle at which the rays of light are projected may be vertically-varied by swinging the casing 17 upon the trunnions 10, the 'screw 12 having first been loosened to free the casing from the pressure of the arms 9. The battery can be quickly changed and the connections are readily made, so that the apparatus pro- Vides an economical and eiiicient commercial device.

What I claim as myinvention is 1. A head lamp, comprising in combination with a head band, a battery support on said head-band, a housing also on vsaid headband, a lamp casing, spring arms mounted in said housing and having trunnions supporting'said lamp casing to swing between said arm, and a screw element passing through said spring arms and adapted to draw the latter into fastening engagement around said casing.

2. A head lamp, comprising in combination with a. head band, battery pockets carried by said head band, a housing on said head band and including top and bottom ture, in the presence of two Witnesses.

MICHAEL MATZ. Witnesses: STAGY HALL, CHARLES ANDERSON.

extensions, a spring yoke supported on said 

